Vehicular adaptor for a portable radio



FIG. 1 is a front, top and left side perspective view of a vehicular adaptor for a portable radio showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a rear elevational view thereof; and

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a vehicular adaptor for a portable radio, as shown. 